Modular air purification device for desktop 3D printer

Abstract

The utility model relates to the technical field of air purification in 3D (three-dimensional) printers, in particular to a modularized air purification device for a desktop 3D printer, which comprises a blast bin, and an air blower is arranged in the blast bin; the filtering bin is magnetically adsorbed above the air blowing bin, a filter element for filtering pollutants is filled in the filtering bin, air channels are formed in the upper side and the lower side of the filtering bin, and the side face of the filtering bin is open; the magnetic columns are embedded in the opposite faces of the air blowing bin and the filtering bin, and the magnetism of the magnetic columns on the filtering bin is opposite to that of the magnetic columns on the air blowing bin; the sliding plate is arranged at the side opening of the filtering bin in a sliding manner. Polluted air in a printer sealing box is sucked into the purifying device through the air blower, the polluted air enters the filtering bin from the air channel below the filtering bin, is filtered by the filter element and then is discharged from the air channel above the filtering bin, the filtering bin is taken down from the air blowing bin, the sliding plate slides out of the opening in the side face of the filtering bin, and then the filter element can be replaced.

Description

TECHNICAL FIELD

[0001] The utility model relates to 3D printer air purification technical field, concretely is a modular air purification device for desktop 3D printer. BACKGROUND

[0002] At present, the 3D printer on the market, fused deposition modeling (FDM) 3D printing technology is popular with the public due to low cost, simple operation. However, in use, the FDM 3D printer on the market mostly adopts PLA, PETG, ABS and other polymers as raw materials, wherein the performance of ABS material is better, but certain harmful substances can be generated in the printing process, which can diffuse with air and have certain influence on human body.

[0003] In order to prevent harmful substances from diffusing to the outside with air, it is usually necessary to install a filter device in the printer to purify the air containing pollutants. At the same time, in order to achieve better purification effect, the filter element in the filter device needs to be replaced after a period of use. Therefore, the cartridge body for placing the filter element in the filter device is usually detachable, which facilitates the removal of the filter element. When installing, the filter cartridge is usually fastened in the filter device by bolts. When replacing the filter element, the bolts need to be unscrewed one by one before the filter element in the filter cartridge can be replaced. The operation is relatively cumbersome, and the replacement efficiency is relatively low.

[0004] Therefore, a modular air purification device for desktop 3D printer is proposed to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] In view of the deficiencies of the prior art, the utility model provides a modular air purification device for desktop 3D printer, which can be configured with coconut shell carbon adsorption filter element. The filter element can filter the pollutants generated when the desktop 3D printer prints ABS and other materials. In addition, the magnetic filter material bin simplifies the installation steps of replacing the filter element to the greatest extent.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a modular air purification device for desktop 3D printer, comprising:

[0007] The air blowing bin is installed on the right inner wall of the printer through the support. The air blowing bin is provided with an air blower. The polluted air in the sealed box of the printer is sucked into the interior of the purification device through the air blower.

[0008] The filter bin is magnetically adsorbed above the air blowing bin. The filter bin is filled with filter elements for filtering pollutants. The upper and lower sides of the filter bin are provided with air ducts. The side surface of the filter bin is open. The polluted air enters the filter bin from the lower air duct of the filter bin, is filtered by the filter elements, and is discharged from the upper air duct of the filter bin.

[0009] Magnetic columns are embedded in the opposite sides of the air blowing chamber and the filter chamber, and the magnetic columns on the filter chamber are magnetically opposite to those on the air blowing chamber; a sliding plate is slidingly arranged at the side opening of the filter chamber, and the filter chamber can be taken off from the air blowing chamber, and the sliding plate is slid out of the side opening of the filter chamber, so that the filter core can be replaced.

[0010] Further, arc-shaped flow guides are arranged in the air blowing chamber, which have a good guiding effect on air, and the filter core is a coconut shell charcoal filter core, which has a good filtering effect on pollutants generated when printing ABS and other materials.

[0011] Further, the side of the air blowing chamber is in an open shape, and a cover plate is fixed on the side opening of the air blowing chamber to shield the side opening. By taking the cover plate off from the front side of the air blowing chamber, the air blower in the air blowing chamber can be conveniently maintained and cleaned.

[0012] Further, corresponding mounting holes are formed in the opposite sides of the air blowing chamber and the filter chamber, and the magnetic columns are in transition fit with the mounting holes. The mounting space of the magnetic columns is provided by the mounting holes.

[0013] Further, straight sliding grooves are formed inwardly on both sides of the opening of the filter chamber to provide sliding space for the sliding plate and position the sliding direction of the sliding plate.

[0014] Further, a damper switching chamber is fixed on the filter chamber, the air duct on the filter chamber extends into the damper switching chamber, an inner circulation air outlet is formed on the top of the damper switching chamber, an outer circulation air outlet is formed on the side of the damper switching chamber, and a rotatable baffle is arranged in the damper switching chamber. The inner and outer circulations are changed by the rotatable baffle, so as to achieve the purpose of controlling the temperature of the damper switching chamber.

[0015] Further, a rotating shaft is rotatably arranged on the inner wall of the damper switching chamber through a bearing, a connecting rod is fixed on the outer side of the rotating shaft, and the baffle is fixed on the end of the connecting rod. The rotating shaft can drive the baffle to rotate freely through the connecting rod.

[0016] Further, a half gear is fixed on the rotating shaft, a transition gear is rotatably arranged in the damper switching chamber and engaged with the half gear, a rudder machine is fixed on the outer surface of the damper switching chamber, an output shaft of the rudder machine extends into the damper switching chamber, and a driving gear engaged with the transition gear is fixed on the end of the output shaft. The adjustment of the rotation angle of the baffle is realized through the meshing transmission of the driving gear, the transition gear and the half gear.

[0017] Further, arc-shaped sliding grooves are formed in the inner walls on both sides of the damper switching chamber, and sliding rods are fixed on the corresponding two sides of the baffle and sliding in the arc-shaped sliding grooves. The stability of the baffle during rotation is ensured under the guiding action of the sliding rods and the arc-shaped sliding grooves.

[0018] Further, the outer side of the air door switching bin is fixed with a sealing ring located at the outer periphery of the outer circulation air outlet, which can ensure the smooth outer circulation.

[0019] Compared with the prior art, the technical scheme has the following beneficial effects:

[0020] 1. The modular air purification device for the desktop 3D printer can automatically start the air blower during the operation of the printer, and the polluted air in the sealed box of the printer is sucked into the purification device, and the coconut shell charcoal adsorption filter element arranged in the filter bin can more effectively filter the pollutants generated during the printing of ABS and other materials.

[0021] 2. The modular air purification device for the desktop 3D printer can flexibly switch the air internal circulation or external circulation according to the actual working scene by controlling the rotation angle of the baffle, so as to realize the purpose of filtering and controlling the bin temperature. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structure schematic view of the air purification device of the utility model installed to the printer;

[0023] Figure 2 It is a structure left view of the air purification device of the utility model;

[0024] Figure 3 It is a separation state schematic view of the filter bin and the air blowing bin of the utility model;

[0025] Figure 4 It is a structure partial sectional view of the air purification device of the utility model;

[0026] Figure 5 It is a structure schematic view of the utility model Figure 4 It is an enlarged structure schematic view of A part of the utility model;

[0027] Figure 6 It is a structure front view of the air purification device of the utility model.

[0028] In the drawing: 1, air blowing bin; 2, support; 3, air blower; 4, filter bin; 5, air duct; 6, guide plate; 7, cover plate; 8, magnetic column; 9, mounting hole; 10, sliding plate; 11, straight line sliding groove; 12, air door switching bin; 13, internal circulation air outlet; 14, external circulation air outlet; 15, baffle; 16, rotating shaft; 17, connecting rod; 18, half gear; 19, transition gear; 20, rudder machine; 21, driving gear; 22, arc-shaped sliding groove; 23, sliding rod; 24, sealing ring. DETAILED DESCRIPTION

[0029] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts under the premise that no creative efforts are made, belong to the scope of protection of the present application.

[0030] Please refer to Figures 1-6 The modular air purification device for the desktop 3D printer in the embodiment comprises a blowing warehouse 1, the blowing warehouse 1 is installed on the right inner wall of the printer through a support 2, a blower 3 is arranged in the blowing warehouse 1, the polluted air in the sealed box of the printer is sucked into the interior of the purification device through the blower 3, a filter warehouse 4 is arranged on the blowing warehouse 1, a filter core is filled in the filter warehouse 4, harmful substances are adsorbed through the filter core, air ducts 5 are arranged on the upper and lower sides of the filter warehouse 4, and the filtered air is discharged through the air ducts 5 above the filter warehouse 4.

[0031] In use, the polluted air in the sealed box of the printer is sucked into the interior of the purification device through the blower 3, and after the harmful substances in the polluted air are adsorbed through the filter core, the polluted air is discharged from the purification device through the air ducts 5 above the filter warehouse 4.

[0032] The filter core is a coconut shell charcoal filter core, and the coconut shell charcoal filter core has a good filtering effect on pollutants generated when ABS and other materials are adsorbed.

[0033] In addition, an arc-shaped flow guide plate 6 is further arranged in the blowing warehouse 1, and is used for guiding the air, so that the polluted air sucked into the interior of the purification device is discharged to the filter warehouse 4.

[0034] In order to facilitate cleaning and maintenance of the parts in the blowing warehouse 1, the side surface of the blowing warehouse 1 is in an open state, a cover plate 7 is fixed through screws at the opening on the front side of the blowing warehouse 1, the blower 3 in the blowing warehouse 1 can be maintained and cleaned by taking the cover plate 7 off from the front side of the blowing warehouse 1.

[0035] Since the connection mode of the filter warehouse 4 and the blowing warehouse 1 is usually detachable connection, as a preferred embodiment, the filter warehouse 4 is magnetically connected with the blowing warehouse 1 through magnetic columns 8, the magnetic columns 8 on the filter warehouse 4 and the blowing warehouse 1 are opposite in magnetism, and the filter warehouse 4 and the blowing warehouse 1 can be adsorbed through the magnetic columns 8 opposite in magnetism.

[0036] The opposite surfaces of the blowing warehouse 1 and the filter warehouse 4 are provided with corresponding mounting holes 9, the magnetic columns 8 are in transition fit with the mounting holes 9, and the mounting space of the magnetic columns 8 is provided through the mounting holes 9. When the magnetic columns 8 are installed, the magnetic columns 8 can be inserted into the mounting holes 9 by force, and the blowing warehouse 1 and the filter warehouse 4 can be adsorbed through the magnetic columns 8.

[0037] As to how to replace the filter core in the filter bin 4, the side of the filter bin 4 is open, and the slide plate 10 is detachably installed on the side of the filter bin 4. Straight sliding grooves 11 are formed on the two sides of the opening of the filter bin 4, for the sliding of the slide plate 10. When the slide plate 10 is slid upward to the limit position, the side opening of the filter bin 4 can be blocked. At the same time, if it is necessary to replace the filter core in the filter bin 4, the slide plate 10 is slid out, the old filter core can be taken out, and the new filter core is placed in the filter bin 4 again. Then, the filter bin 4 is adsorbed to the air blowing bin 1 again, and the slide plate 10 is abutted to the filter bin 4 by the air blowing bin 1.

[0038] In the embodiment, the purpose of controlling the temperature of the bin by the air door can also be achieved by changing the internal and external circulation. The air door switching bin 12 is fixed on the filter bin 4, and the air duct 5 above the filter bin 4 extends into the air door switching bin 12. The internal circulation air outlet 13 is formed above the air door switching bin 12, and the external circulation air outlet 14 is formed on the side of the air door switching bin 12. The rotatable baffle 15 is further arranged in the air door switching bin 12. The baffle 15 is rotated to block the external circulation air outlet 14 or the internal circulation air outlet 13.

[0039] When the air enters the air door switching bin 12 from the air duct 5 above the filter bin 4, the baffle 15 blocks the internal circulation air outlet 13, so that the air is discharged from the external circulation air outlet 14 and discharged to the outside of the printer. When the baffle 15 blocks the external circulation air outlet 14, the air is discharged through the internal circulation air outlet and circulates in the printer.

[0040] As to how the baffle 15 rotates, as shown in Figures 4-6 The inner wall of the air door switching bin 12 is rotatably provided with a rotating shaft 16 through a bearing. The outer side of the rotating shaft 16 is fixedly provided with a connecting rod 17. The baffle 15 is fixed to the end of the connecting rod 17. The rotating shaft 16 is fixedly provided with a half gear 18. The air door switching bin 12 is rotatably provided with a transition gear 19 engaged with the half gear 18 through a rotating shaft. The outer surface of the air door switching bin 12 is fixedly provided with a rudder 20. The output shaft of the rudder 20 extends into the air door switching bin 12, and the end thereof is fixedly provided with a driving gear 21 engaged with the transition gear 19.

[0041] In use, the rudder 20 drives the driving gear 21 to rotate, the driving gear 21 drives the transition gear 19 to rotate, the half gear 18 drives the rotating shaft 16 to rotate, and the connecting rod 17 drives the baffle 15 to rotate, as shown in the state of Figure 5 The baffle 15 blocks the external circulation air outlet 14 to achieve internal circulation. The baffle 15 is rotated clockwise by ninety degrees through the rotating shaft 16, and the baffle 15 blocks the internal circulation air outlet 13 to achieve external circulation.

[0042] In addition, in order to ensure the stability of the rotating movement of the baffle 15, arc-shaped sliding grooves 22 are formed in the inner walls on both sides of the air door switching bin 12, and sliding rods 23 corresponding to both sides of the baffle 15 are fixed in the arc-shaped sliding grooves 22, so that the sliding rods 23 slide in the arc-shaped sliding grooves 22 when the baffle 15 rotates, and the rotating movement of the baffle 15 is more stable.

[0043] Since the air purification device is installed on the inner wall of the printer shell, an air outlet is formed on the printer shell and corresponds to the outer circulation air outlet 14, air is discharged to the outside through the outer circulation air outlet 14 and the air outlet, and in order to ensure the smooth circulation, a sealing ring 24 is fixed on the outer circumferential surface of the outer circulation air outlet 14 on the outer side of the air door switching bin 12, so as to improve the sealing performance of the outer wall of the air door switching bin 12 and the inner wall of the printer shell.

[0044] It should be noted that when the air is discharged to the outside from the outer circulation air outlet 14, the air pressure in the printer is reduced, and since the printer is not completely closed, air can enter from the openings or gaps of the printer to realize the outer circulation, and the openings or gaps of the printer include the heat dissipation gap, the opening at the Z-axis motor, and the opening at the wiring board, and the air inlet at the wiring board is also beneficial to the heat dissipation of the electronic devices such as the host computer and the MCU.

[0045] In the above embodiment, the baffle 15 blocks the outer circulation air outlet 14 in the state shown in Figure 5 The device can perform inner circulation, the polluted air in the printer box is sucked into the air blowing bin 1 by the air blower 3, the air is guided to the filter bin 4 by the guide plate 6, the air enters from the air duct 5 below the filter bin 4, and after the harmful substances are adsorbed by the coconut shell charcoal filter element filled in the filter bin 4, the air enters the air door switching bin 12 through the air duct 5 above the filter bin 4, and is discharged to the outside of the printer through the inner circulation air outlet 13 above the air door switching bin 12, thereby realizing the inner circulation.

[0046] When the outer circulation is needed, the steering engine 20 drives the driving gear 21 to rotate, the driving gear 21 drives the transition gear 19 to rotate, the half gear 18 drives the rotating shaft 16 to rotate clockwise by ninety degrees, the baffle 15 blocks the inner circulation air outlet 13, and the air entering the air door switching bin 12 after being filtered is discharged through the outer circulation air outlet 14, thereby realizing the outer circulation.

[0047] If the filter core in the filter bin 4 needs to be replaced, the filter bin 4 is taken off from above the air blowing bin 1, and the sliding plate 10 is slid out from the side opening of the filter bin 4, the old filter core is taken out and a new filter core is placed, then the sliding plate 10 is slid into the sliding groove from both sides of the filter bin 4, when the sliding plate 10 is slid up to the limit position, the side opening of the filter bin 4 is blocked, then the filter bin 4 is adsorbed to the air blowing bin 1 again, and the sliding plate 10 is limited on the surface of the filter bin 4, so the quick replacement of the filter core is completed.

[0048] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0049] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A modular air purification device for a desktop 3D printer, characterized in that, include: A blower chamber (1) is installed on the inner wall of the right side of the printer via a bracket (2), and a blower (3) is installed inside the blower chamber (1). The filter chamber (4) is magnetically attached to the top of the blower chamber (1), and is filled with a filter element for filtering pollutants. Air ducts (5) are provided on both the upper and lower sides. The side of the filter chamber (4) is open. Magnetic column (8) is embedded on the opposite side of the blower chamber (1) and the filter chamber (4), and the magnetic column (8) on the filter chamber (4) is opposite to the magnetic column (8) on the blower chamber (1); slide plate (10) is slidably disposed on the side opening of the filter chamber (4).

2. The modular air purification device for a desktop 3D printer according to claim 1, characterized in that: The blower chamber (1) is also equipped with an arc-shaped guide plate (6), and the filter element is a coconut shell carbon filter element.

3. The modular air purification device for a desktop 3D printer according to claim 1, characterized in that: The side of the blower chamber (1) is open, and a cover plate (7) is fixed on the side opening of the blower chamber (1) to block the side opening of the blower chamber (1).

4. The modular air purification device for a desktop 3D printer according to claim 1, characterized in that: The blower chamber (1) and the filter chamber (4) are provided with corresponding mounting holes (9) on their opposite sides, and the magnetic column (8) is fitted with the mounting hole (9).

5. A modular air purification device for a desktop 3D printer according to claim 1, characterized in that: The filter chamber (4) has inwardly formed straight grooves (11) on both sides of the opening for the sliding plate (10) to slide.

6. A modular air purification device for a desktop 3D printer according to claim 1, characterized in that: A damper switching chamber (12) is fixed on the filter chamber (4). The air duct (5) above the filter chamber (4) extends into the damper switching chamber (12). An internal circulation air outlet (13) is opened above the damper switching chamber (12). An external circulation air outlet (14) is opened on the side of the damper switching chamber (12). A rotatable baffle (15) is also provided inside the damper switching chamber (12).

7. A modular air purification device for a desktop 3D printer according to claim 6, characterized in that: The inner wall of the damper switching chamber (12) is provided with a rotating shaft (16) via a bearing. A connecting rod (17) is fixed to the outside of the rotating shaft (16), and the baffle (15) is fixed to the end of the connecting rod (17).

8. A modular air purification device for a desktop 3D printer according to claim 7, characterized in that: A half gear (18) is fixed on the rotating shaft (16). A transition gear (19) that meshes with the half gear (18) is rotatably arranged in the damper switching chamber (12) through the rotating shaft. A servo motor (20) is fixed on the outer surface of the damper switching chamber (12). The output shaft of the servo motor (20) extends into the damper switching chamber (12), and a drive gear (21) that meshes with the transition gear (19) is fixed at its end.

9. A modular air purification device for a desktop 3D printer according to claim 6, characterized in that: The inner walls of both sides of the damper switching chamber (12) are provided with arc-shaped grooves (22), and the baffle (15) is fixed with sliding rods (23) that slide in the arc-shaped grooves (22) on both sides.

10. A modular air purification device for a desktop 3D printer according to claim 6, characterized in that: The outer side of the damper switching chamber (12) is fixed with a sealing ring (24) located on the outer periphery of the external circulation air outlet (14).

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